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<html lang="zh-CN">
<head>
    <meta charset="UTF-8">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>css_one</title>
    <link rel="stylesheet" href="css_one.css">
    <style>
        h1{
            color: green;
        }
    </style>
</head>
<body>
    <h1 style="color: blue;">css_one样式优先级h1</h1>
    <p>内联样式表 -> 内部样式表 -> 外部样式表 -> 浏览器默认样式表</p>
</body>
</html>